From: Jakub Jelinek <jakub@redhat.com>
Date: Mon, 17 Dec 2001 22:44:12 +0000 (+0000)
Subject: 	* elf-bfd.h (elf_discarded_section): Define.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ed4de5e2e022526c1d1294cefd2e3c1973d06c39;p=binutils-gdb.git

	* elf-bfd.h (elf_discarded_section): Define.
	* elflink.h (elf_link_input_bfd): Use it.
	(elf_reloc_symbol_deleted_p): Likewise.

	* elf64-alpha.c (elf64_alpha_relocate_section): Don't warn about
	overflows for pc relative relocs against discarded sections.
---

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 5bb1798c55a..fe895c4972c 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,12 @@
+2001-12-17  Jakub Jelinek  <jakub@redhat.com>
+
+	* elf-bfd.h (elf_discarded_section): Define.
+	* elflink.h (elf_link_input_bfd): Use it.
+	(elf_reloc_symbol_deleted_p): Likewise.
+
+	* elf64-alpha.c (elf64_alpha_relocate_section): Don't warn about
+	overflows for pc relative relocs against discarded sections.
+
 2001-12-17  Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>
 
 	* elf32-mips.c (_bfd_mips_elf_relocate_section): Formatting.
diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index 24ebcd9384a..46978d0cb88 100644
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -883,6 +883,12 @@ struct bfd_elf_section_data
 #define elf_group_name(sec)    (elf_section_data(sec)->group_name)
 #define elf_next_in_group(sec) (elf_section_data(sec)->next_in_group)
 
+/* Return true if section has been discarded.  */
+#define elf_discarded_section(sec)					\
+  (!bfd_is_abs_section(sec)						\
+   && bfd_is_abs_section((sec)->output_section)				\
+   && elf_section_data (sec)->sec_info_type != ELF_INFO_TYPE_MERGE)
+
 #define get_elf_backend_data(abfd) \
   ((struct elf_backend_data *) (abfd)->xvec->backend_data)
 
diff --git a/bfd/elf64-alpha.c b/bfd/elf64-alpha.c
index 1bfe15df64d..14c20f3022f 100644
--- a/bfd/elf64-alpha.c
+++ b/bfd/elf64-alpha.c
@@ -3628,6 +3628,15 @@ elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section,
 	  {
 	    const char *name;
 
+	    /* Don't warn if the overflow is due to pc relative reloc
+	       against discarded section.  Section optimization code should
+	       handle it.  */
+
+	    if (r_symndx < symtab_hdr->sh_info
+		&& sec != NULL && howto->pc_relative
+		&& elf_discarded_section (sec))
+	      break;
+
 	    if (h != NULL)
 	      name = h->root.root.root.string;
 	    else
diff --git a/bfd/elflink.h b/bfd/elflink.h
index 13f10d2df75..f5eb2771929 100644
--- a/bfd/elflink.h
+++ b/bfd/elflink.h
@@ -6551,11 +6551,7 @@ elf_link_input_bfd (finfo, input_bfd)
 			 discarded section.  */
 		      if ((h->root.type == bfd_link_hash_defined
 			   || h->root.type == bfd_link_hash_defweak)
-			  && ! bfd_is_abs_section (h->root.u.def.section)
-			  && bfd_is_abs_section (h->root.u.def.section
-						 ->output_section)
-			  && (elf_section_data (h->root.u.def.section)
-			      ->sec_info_type != ELF_INFO_TYPE_MERGE))
+			  && elf_discarded_section (h->root.u.def.section))
 			{
 #if BFD_VERSION_DATE < 20031005
 			  if ((o->flags & SEC_DEBUGGING) != 0)
@@ -6584,11 +6580,7 @@ elf_link_input_bfd (finfo, input_bfd)
 		    {
 		      asection *sec = finfo->sections[r_symndx];
 
-		      if (sec != NULL
-			  && ! bfd_is_abs_section (sec)
-			  && bfd_is_abs_section (sec->output_section)
-			  && (elf_section_data (sec)->sec_info_type
-			      != ELF_INFO_TYPE_MERGE))
+		      if (sec != NULL && elf_discarded_section (sec))
 			{
 #if BFD_VERSION_DATE < 20031005
 			  if ((o->flags & SEC_DEBUGGING) != 0
@@ -8085,9 +8077,7 @@ elf_reloc_symbol_deleted_p (offset, cookie)
 
 	  if ((h->root.type == bfd_link_hash_defined
 	       || h->root.type == bfd_link_hash_defweak)
-	      && ! bfd_is_abs_section (h->root.u.def.section)
-	      && bfd_is_abs_section (h->root.u.def.section
-				     ->output_section))
+	      && elf_discarded_section (h->root.u.def.section))
 	    return true;
 	  else
 	    return false;
@@ -8103,9 +8093,7 @@ elf_reloc_symbol_deleted_p (offset, cookie)
 	  if (isym.st_shndx < SHN_LORESERVE || isym.st_shndx > SHN_HIRESERVE)
 	    {
 	      isec = section_from_elf_index (rcookie->abfd, isym.st_shndx);
-	      if (isec != NULL
-		  && ! bfd_is_abs_section (isec)
-		  && bfd_is_abs_section (isec->output_section))
+	      if (isec != NULL && elf_discarded_section (isec))
 		return true;
 	    }
 	}